Improvement in sash holder and lock



E. TOBIN, Jr. Sash-Holder and Look.

No. 204,691. Patented June 1I, 1878.

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NA PETERS, PHOTWIWWGRAPNER, WASHINGTON. D. C.

f'UNITED STATES PATENT OFFICE.

EDMOND TOBIN, JR., OF OCONTO, WISCONSIN.

IMPROVEMENT IN SASH HOLDER AND LOCK.

Specification forming part of Letters Patent No. 204,691, dated June l1,1878 application filed April 26, 1878.

.To all whom it may concern:

Be it known that I, EDMoND TOBIN, Jr., of Oconto city, in the county ofOconto and State of Wisconsin, have invented a new and usefulImprovement in Sash Fasteners, of which the following is aspecification:

The invention relates to a device for holding the sashes in anyposition, and also for locking the same when4 closed, and at shortintervals when open.

The object of my invention is to provide a mechanism to be attached towindow frames and sashes to admit of the sashes being raised or loweredrapidly to any position, where the stop holds them firmly.

The invention consists in the arrangement of a bevel-nosed spring-boltinclosed in a circular case, and provided with an arm and a key orthumb-piece, for the purpose of unlocking the bolt to be attached to thewindowframe, in connection with a toothed rack xed to the sash,'andarranged to hold it in any position, and lock the same at shortintervals.

In the accompanying drawing, in which similar letters of referenceindicate like parts, Figure 1 is a front inside elevation of a windowframe and sashes, showing the device attached; Fig. 2, a sectional view,showing inside of same; Fig. 3, a section of sash with toothed rack;Fig. 4, a front elevation of the case containing the spring-bolt; Fig.5, a side elevation; Fig. 6, a longitudinal section of same; Fig. 7, anend view of bolt; Fig. 8, two views of the key, and Fig. 9 a part sideelevation of the toothed rack.

In the frame, A, Fig. 1, at positions shown, are bored holes slightlyrabbeted to receive the case and the ange of ditto, held in place byscrews. The bolt, held in projecting position by spring, follows thecorrugated form of the rack attached to the sash by screws D and lugs E.Spaces F and Gr are left to receive the bolt when both sashes areclosed. The locksocket C may be placed in any part of the rack.

Figs. 4, 5, and 6 are enlarged views of the case., &c. H is the flangedcylinder; I, the spring, and J the bolt, which is made oval, or theshape shown in Fig. 7, to the round part K. The remaining portionor'catch is square.

The operation is as follows: When the device is fixed and the sashes areclosed, and it is required to open them, place the key on top of the armin connection with the springbolt, which passes through a small hole inthe stop of the frame, when, with a slight pressure, the bolt is forcedback from the toothed rack, (in first opening to unlock the sash only,)after which the sash may be raised rapidly to any height, or full open,providing there are no intermediate locks in the rack.

The sash may be left open from one to four inches all night with perfectsafety.

The sashes lock and hold themselves in any position. The key is onlyused to unlock them.

In a sash holder and lock, a bevel-nosed spring-bolt inclosed in acircular case, and provided with an arm adapted to engage with a key forth@ purpose of unlocking the bolt, in combination with a rack havingteeth arranged to hold the sash in any position, and to lock the same atshort intervals, substantially as described.

EDMOND TOBIN, JR.

Witnesses:

GEORGE CLARK, GUsTAV DITTMORE.

